【IT168 技术文档】

用一个简单的ejb3.0示例记录ant打ear包的过程

源码下载

环境:
apache-ant-1.6.5
jboss-4.2.1.GA
jboss-annotations-ejb3.jar
jboss-ejb3.jar
jboss-ejb3x.jar
最后三个包在jboss里有.

1,建ejb3.0项目
session bean接口:HelloWorld
public interface HelloWorld {
    public String sayHello(String name);
}

实现类:HelloWorldBean

@Stateless
@Remote ({HelloWorld.class})
public class HelloWorldBean implements HelloWorld {
public String sayHello(String name) {
//org.apache.commons.collections,这里假设用到了其它包中的类
        CollectionUtils c=new CollectionUtils();
//org.apache.commons.lang
        StringUtils s=new StringUtils();
return "hello,i am "+name;
}
}

调用session bean的jsp:

<%
//org.apache.commons.collections,这里假设用到了其它包中的类
CollectionUtils c=new CollectionUtils();
//org.apache.commons.lang
StringUtils s=new StringUtils();
%>
<%
        Properties props = new Properties();
props.setProperty("java.naming.factory.initial", "org.jnp.interfaces.NamingContextFactory");
props.setProperty("java.naming.provider.url", "localhost:1099");
props.setProperty("java.naming.factory.url.pkgs", "org.jboss.naming");
InitialContext ctx;
try {
ctx = new InitialContext(props);
HelloWorld helloworld = (HelloWorld) ctx.lookup("myproject/HelloWorldBean/remote");
out.println(helloworld.sayHello("mashiguang"));
} catch (NamingException e) {
out.println(e.getMessage());
}
%>

2,ant示例

把一些公用的jar包都放到ear下,而不是分别在ejb jar包和war包里,减少jar包的冗余.

<project name="ear" default="deploy" basedir=".">
    <property environment="env" />
    <property name="app.dir" value="${basedir}" />
    <property name="src.dir" value="${app.dir}\src" />
    <property name="classes.dir" value="${app.dir}\build\classes" />
    <property name="webcontent.dir" value="${app.dir}\WebContent" />
    <property name="jboss.home" value="${env.JBOSS_HOME}" />
    <property name="jboss.server.config" value="default" />
    <path id="build.classpath" description="编译时classpath">
        <fileset dir="${webcontent.dir}\WEB-INF\lib">
            <include name="*.jar" />
        </fileset>
        <pathelement location="${classes.dir}" />
    </path>
    <target name="prepare" depends="clean" description="创建classes文件夹">
        <mkdir dir="${classes.dir}" />
    </target>
    <target name="compile" depends="prepare" description="编绎">
        <javac srcdir="${src.dir}" destdir="${classes.dir}" debug="on" deprecation="on" optimize="off" includes="**">
            <classpath refid="build.classpath" />
        </javac>
    </target>

<target name="sessionInterface" depends="compile" description="创建session bean接口包">
        <jar destfile="${app.dir}/interface.jar">
            <fileset dir="${classes.dir}">
                <include name="com/mashiguang/ejb3/*.class" />
            </fileset>
        </jar>
    </target>
    <target name="ejb_jar" depends="sessionInterface" description="创建ejb jar包">
            <jar destfile="${app.dir}/ejb.jar">
                <fileset dir="${classes.dir}">
                    <include name="com/mashiguang/ejb3/impl/**" />
                </fileset>
                <manifest>
                    <attribute name="Class-Path" value="interface.jar commons-collections-3.2.jar commons-lang-2.3.jar"/>
                </manifest>
            </jar>
    </target>

<target name="web-war" depends="ejb_jar" description="创建WEB发布包">
        <war destfile="${app.dir}/web.war" webxml="${webcontent.dir}/WEB-INF/web.xml">
            <fileset dir="${webcontent.dir}">
                <include name="*.jsp"/>
                <exclude name="WEB-INF/web.xml"/>
                <exclude name="WEB-INF/lib/**"/>
            </fileset>
            <manifest>
                <attribute name="Class-Path" value="interface.jar commons-collections-3.2.jar commons-lang-2.3.jar"/>
            </manifest>
        </war>
    </target>
    <target name="ear" depends="web-war" description="创建WEB发布包">
        <ear destfile="${app.dir}/myproject.ear" appxml="${src.dir}/META-INF/application.xml">
            <fileset dir="${app.dir}">
                <include name="ejb.jar"/>
                <include name="web.war"/>
                <include name="interface.jar"/>
            </fileset>
            <fileset dir="${webcontent.dir}/WEB-INF/lib" >
                <include name="commons*.jar"/>
            </fileset>
        </ear>
    </target>

<target name="deploy" depends="ear">
        <copy file="${app.dir}/myproject.ear" todir="${jboss.home}/server/${jboss.server.config}/deploy" />
    </target>
    <target name="clean">
        <delete>
            <fileset dir="${app.dir}">
                <include name="ejb.jar"/>
                <include name="web.war"/>
                <include name="interface.jar"/>
            </fileset>
        </delete>
        <delete dir="${classes.dir}" />
        <!-- -->
        <delete file="${jboss.home}/server/${jboss.server.config}/deploy/myproject.ear" />

</target>
</project>